In gravity-minimized shoulder flexion, how is the upper extremity positioned?

In gravity-minimized shoulder flexion, how is the upper extremity positioned?

• A. Elbow extended and forearm pronated
• B. Elbow extended and forearm supinated
• C. Elbow flexed with neutral rotation
• D. Elbow flexed with forearm supinated

Answer: (C)

To isolate shoulder flexors when gravity isn’t helping or opposing the movement, position the arm so gravity has minimal effect on the shoulder joint. Having the elbow bent brings the distal segment (forearm and hand) closer to the body and reduces the gravitational torque that would drive or hinder shoulder flexion. Keeping the forearm in neutral rotation avoids any extra bending or twisting that would change the line of pull at the shoulder. With the arm supported and the forearm neutral and flexed, the test better reflects the strength of the shoulder flexors themselves rather than the weight of the forearm or the effect of rotation.

To isolate shoulder flexors when gravity isn’t helping or opposing the movement, position the arm so gravity has minimal effect on the shoulder joint. Having the elbow bent brings the distal segment (forearm and hand) closer to the body and reduces the gravitational torque that would drive or hinder shoulder flexion. Keeping the forearm in neutral rotation avoids any extra bending or twisting that would change the line of pull at the shoulder. With the arm supported and the forearm neutral and flexed, the test better reflects the strength of the shoulder flexors themselves rather than the weight of the forearm or the effect of rotation.